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Cannot Ping Machine in Workgroup

Posted on 2008-10-16
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Last Modified: 2013-11-29
A local HR B l o c k outfit has a workgroup of a few computers, all on DHCP leases. Reimaged a server and I am now trying to hook up shared printers to the server.  Problem is I cannot ping one of the computers from the server, nor can I ping this problem computer from any of the other computers in the workgroup. I can ping from the problem computer to the rest just fine; all have internet access. The firewall is disabled on all computes, there are no security suites installed on any of the computers. I called HR remote support and they too could not figure it out... it's like an invisible barrier surrounding the comp.  I've flushed DNS caches, released/renewed IP's, rebooted the router, reinstalled NIC drivers, installed a new NIC, reset TCP/IP stack... nothing... same scenario. Also... the Cisco VPN Client utility does not connect to HR headquarters as it should.

Any ideas? Time to reimage this computer?
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Question by:Tercestisi
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by:tkuennen
ID: 22737383
You stated that the computer is able to access the internet, but will not respond to pings, or connect to the VPN, so at first glance this looks like a local DNS record, or Firewall issue.

First I would try to resolve the machines hostname from both the client, and the server. Doing this will ensure you don't have any DNS problems.
On Windows:
hostname from server: nslookup computername.domain.com
current leased address from server: nslookup 123.456.789.909 (computers address

nslookup the server from the client
nslookup servername.domain.com
nslookup the servers IP address

If you are using Linux you can use the dig -t any command to gather name resolution info

If the issue is firewall related you should first check the rules on the client, and switch port that the machine is connected to on the intranet.
Make sure it is accepting both icmp requests, and replys
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by:Tercestisi
ID: 22737455
It's not firewall related as all firewalls are off/disabled.

DNS shouldn't matter because I'm not trying to pin the hostname, but the IP address.
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by:tkuennen
ID: 22737482
Ah. So I see you also tried multiple NICs.
Is it running Windows XP SP3?

If so have you tried a winsock reset?

Also what kind of computer is it?
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by:Tercestisi
ID: 22737604
SP2... did try winsock reset... it's a Dell.
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Expert Comment

by:davids355
ID: 22738782
Are you SURE its not a firewall issue? If the computer in question can ping all other computers, then communications are fine.

As you are dealing only with ip addresses its not a dns issue.

It really does point towards being a firewall issue, I would check the start up items and services list (Control panel>admin tools>services just incase there are remnants of a firewall suite still floating around on the system.

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Accepted Solution

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Tercestisi earned 0 total points
ID: 22740951
Yeah... I know.. .that is why I'm stumped.  It HAS to be a firewall issue... but it's not. Windows Firewall is off, have even tried to disable ICS/Firewall in Services snap-in. I ran Sysinternals Autoruns and there is absolutely nothing Firewall-related.
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Expert Comment

by:davids355
ID: 22794145
Have you checked program files for any common firewally programs such as norton etc? Also have you checked services? Also, how about running in safemode with networking see if that helps?

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Author Comment

by:Tercestisi
ID: 22805152
It's strange... I can ping it in safe mode.

I've tried msconfig to disable all drivers, not process systeml.ini file, not process win.ini , not load startup items, and to only load the EXACT services that are started in safe mode... but still the same problem.

Doesn't make sense!
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Author Comment

by:Tercestisi
ID: 22805193
AHA!

Found it... there was a stray driver from Zone Alarm... removed that and wholla!
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Expert Comment

by:davids355
ID: 22845664
ATT: modus_operandi

Re your response. I must have missed that, I did see on there a request to close the question - because he was going to wipe the machine. After this I did post another comment regarding it being definately a firewall issue...

Its not a problem, didnt think it was too nice for you to answer my request for attention and then allow me no means of replying to your response.
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